There ______ lots of bad information which is not ____ for teenagers on the Internet.

With 4G mobile phones, people can even see each other as they talk. —-Really? Would you show me it, please?

What did he say in_______ of his stupid behavior?–He admitted having made a serious mistake.

It’s said that there __________ an English report tomorrow afternoon.

Sun Tao has had a_______ English course, but he still doesn’t know